diff --git a/build/openldap.m4 b/build/openldap.m4
index 060c797c2d727c6f7f81e02804e28313f33a2d6a..9f627b534c441219e48ca5d001873a3af632579e 100644
--- a/build/openldap.m4
+++ b/build/openldap.m4
@@ -628,9 +628,9 @@ main()
 	}
 
 #if (DB_VERSION_MAJOR > 3) || (DB_VERSION_MINOR >= 1)
-	rc = env->open( env, NULL, flags, 0 );
+	rc = (env->open)( env, NULL, flags, 0 );
 #else
-	rc = env->open( env, NULL, NULL, flags, 0 );
+	rc = (env->open)( env, NULL, NULL, flags, 0 );
 #endif
 
 	if ( rc == 0 ) {
diff --git a/configure b/configure
index 8677b5b13fb172cac181311b0d57b2d48f078c09..c2ef190006f44e4f4ebe783f57aec5d62f46e286 100755
--- a/configure
+++ b/configure
@@ -31147,9 +31147,9 @@ main()
 	}
 
 #if (DB_VERSION_MAJOR > 3) || (DB_VERSION_MINOR >= 1)
-	rc = env->open( env, NULL, flags, 0 );
+	rc = (env->open)( env, NULL, flags, 0 );
 #else
-	rc = env->open( env, NULL, NULL, flags, 0 );
+	rc = (env->open)( env, NULL, NULL, flags, 0 );
 #endif
 
 	if ( rc == 0 ) {
diff --git a/servers/slapd/back-bdb/back-bdb.h b/servers/slapd/back-bdb/back-bdb.h
index bf3c6ab825f44ed0ea2e834ae52991329f64c731..85361505793d6c80d410ba996cfbf11e03cf182b 100644
--- a/servers/slapd/back-bdb/back-bdb.h
+++ b/servers/slapd/back-bdb/back-bdb.h
@@ -239,7 +239,7 @@ struct bdb_op_info {
 };
 
 #define	DB_OPEN(db, file, name, type, flags, mode) \
-	(db)->open(db, file, name, type, flags, mode)
+	((db)->open)(db, file, name, type, flags, mode)
 
 #if DB_VERSION_MAJOR < 4
 #define LOCK_DETECT(env,f,t,a)		lock_detect(env, f, t, a)
@@ -270,7 +270,7 @@ struct bdb_op_info {
 #if DB_VERSION_FULL >= 0x04010011
 #undef DB_OPEN
 #define	DB_OPEN(db, file, name, type, flags, mode) \
-	(db)->open(db, NULL, file, name, type, flags, mode)
+	((db)->open)(db, NULL, file, name, type, flags, mode)
 #endif
 
 #endif
diff --git a/servers/slapd/back-bdb/init.c b/servers/slapd/back-bdb/init.c
index 4b5f012335680ce0b15eeeceaa1501cfab4fa4db..650813ab0a8b98068d8d8b2697aada7fb480e7b2 100644
--- a/servers/slapd/back-bdb/init.c
+++ b/servers/slapd/back-bdb/init.c
@@ -298,7 +298,7 @@ shm_retry:
 		bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
 		flags |= DB_SYSTEM_MEM;
 	}
-	rc = bdb->bi_dbenv->open( bdb->bi_dbenv, dbhome,
+	rc = (bdb->bi_dbenv->open)( bdb->bi_dbenv, dbhome,
 			flags | do_recover, bdb->bi_dbenv_mode );
 
 	if ( rc ) {